Bracket Race - Small Base Circle, .900''
Drag Race 312R-8 Mechanical Roller Camshaft Only
Lift: .679''/.645''
Duration: 312°/325°
RPM Range: 5000-7500


*Note: In order to use these camshafts in 1955-57 265ci blocks, it is necessary to machine a small groove in the rear main journal of the cam to allow oil flow to the top of the engine.

**Note: Requires upgraded gear, thrust button & wear plate.

400+ ci, good cylinder heads, high compression, .900' base circle for stroker clearances.

Operating Range:	5000-7500 RPM
Duration Advertised:	312° Intake / 325° Exhaust
Duration @ .050' Lift:	279° Intake / 286° Exhaust
Valve Lift w/1.5 Rockers:	.679' Intake / .645' Exhaust
Valve Setting:	.024' Intake / .026' Exhaust
Lobe Separation Angle:	108°

265, 283, 307, 302, 305, 327, 350, 383, 400, 427, L46, L48, L65, LM1, LT-1, L82, L81, LS9, L83, L98, L05, LG3, LG4, LT1, LT4, Camaro, Corvette, Chevelle, Stingray, Silverado, C10, Firebird, Chevrolet, Chevy, Small Block Chevy, Caprice, Malibu, Impala, Nova, 355, GEN1, Monte Carlo, S10


400+ c.i., good heads, high compression, .900" base circle.

Emissions Note:

This part is only legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles or on vehicles used solely for the purposes of closed competition racing.

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